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 $A0-$A2/160-162:   Real-time jiffy Clock

   Updated by IRQ Interrupt approx every 1/60 of Second

   Update Routine is at <A HREF="ROMF69B.HTM">$F69B</A>

Kernal-Reference:

 BIT $00A0   : <A HREF="ROMAFE6.HTM">$AFE8</A>
 INC $A0     : <A HREF="ROMF69B.HTM">$F6A5</A>
 LDA $A0     : <A HREF="ROMF69B.HTM">$F6B0</A>
 LDY $A0     : <A HREF="ROMF6DD.HTM">$F6E2</A>
 STX $A0     : <A HREF="ROMF69B.HTM">$F6B6</A>
 STY $A0     : <A HREF="ROMF6E4.HTM">$F6E9</A>

 CMP $A1     : <A HREF="ROME4E0.HTM">$E4E7</A>
 INC $A1     : <A HREF="ROMF69B.HTM">$F6A1</A>
 LDA $A1     : <A HREF="ROMF69B.HTM">$F6AC</A> <A HREF="ROMF72C.HTM">$F761</A>
 LDX $A1     : <A HREF="ROMF6DD.HTM">$F6E0</A>
 STX $A1     : <A HREF="ROMF69B.HTM">$F6B8</A> <A HREF="ROMF6E4.HTM">$F6E7</A>

 BIT $00A2   : <A HREF="ROMA906.HTM">$A908</A>
 INC $A2     : <A HREF="ROMF69B.HTM">$F69D</A>
 LDA $A2     : <A HREF="ROMF6DD.HTM">$F6DE</A>
 STA $A2     : <A HREF="ROMF6E4.HTM">$F6E5</A>
 STX $A2     : <A HREF="ROMF69B.HTM">$F6BA</A>

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